Solution for rust-proofing and nut locking.



- Rust-Proofing and Nut-Locking, of which ran snares manna entries.

CHARLES DAVIES MATTHEWS, NEW ORLEANS, LOUISIANA, ASSIGNOR OF ONE-EIGHTH TO HENRY R. PEDAN E AND ONE-EIGHTH TO BENJAMIN F. FEITEL, BOTH OF NEW SOLUTION FOR RUST-PROOFING AND NUT-LOCKING.

No Drawing.

To all whom it may concern:

Be it known that I, CHARLES D. MATTH- EWS, a citizen of the United States, and a resident of New Orleans, in the parish of Orleans and State of Louisiana, have invented anew and Improved Solution for the following is a full, clear, and exact description.

My invention relates to a solution with which, if iron or steel are treated, an'oxidizing coating will be formed on the surface of -the object treated. This oxid or rust, as it may be called, prevents water deterioration of the iron or steel and thus serves as a rust proofing-against the effect of the atmosphere on the iron or steel. v

This solution'can also be used for locking nuts or bolts by forming an oxid on'the 1nterengaging threads of the bolt and nut which have beentreated with the solution and thereby preventing the nuts or screws so treated from becoming loosened by vibration, shock, jar, etc., but permitting their removal with a wrench when desired.

The solution is formed of the following ingredients: nitric acid, acetic acid and common, salt. It is formed in the following way: A saturated solution of salt in acetic acid is first prepared. This is then mixed with an equal amount of nitric acid. The resulting liquid can then be used for oxidiz- Specification of Letters Patent.

Patented Dec. 31;, 1918.

Application filed February 19, 1918. Serial No. 218,128,

ing the surface of a steel or iron object, either for preventing the further rusting of that object under the effect of the atmosphere or for locking two threaded steel or iron objects, such, for example, as a bolt and nut.

The chemical mixture forming the solution, when applied to threads of nuts, bolts or screws, will generate chemical rust thereon after they have been secured in place.

The compound being in liquid form, it is very easy to introduce it between the engaging threads of a nut and bolt. The quick corrosion resulting from the introduction of the chemical positively locks the bolt to the nut, and, in cases of surface treatment, renders the object immune to atmospheric conditions.

While the mixtureaboue described gives the best results, different quantities of ingredients may be used for the mixture with substantially the same results, and, therefore I do not wish to be limited to the exact proportions given.

I claim:

A solution for treating objects of iron and. like metals, which consists of a saturatedsolution of common salt in acetic acid andl mixedwith an equal amount of nitric aci CHARLES DAVES MATTHEWS. 

